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    OpenPayerBilling CodesInflammatory diseases of the central nervous systemICD-10-CM g02-meningitis-due-to-other-infections
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    ICD-10-CM Code For Meningitis In Other Infectious And Parasitic Diseases Classified Elsewhere: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group G02 includes meningitis that occurs as a complication of infectious and parasitic diseases classified in other chapters, covering inflammatory involvement of the meninges secondary to systemic infections. These ICD-10-CM diagnosis codes are used to document central nervous system involvement from underlying infectious processes, capturing disease severity and organ system complications relevant to this group. Accurate coding within the ICD-10-CM G02 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM G02: Meningitis In Other Infectious And Parasitic Diseases Classified Elsewhere Overview

    The ICD-10-CM G02 code group represents meningitis that arises as a complication of infectious and parasitic diseases classified in other chapters of the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM). These diagnoses target inflammation of the meninges due to infections such as syphilis, Lyme disease, or other systemic infections specified elsewhere. Accurate coding matters because it links the central nervous system manifestation to the underlying infectious condition and supports appropriate clinical documentation and reimbursement determination.

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    When to Use

    Use a code from this group when meningitis is documented as a complication of an identified infectious or parasitic disease that is classified elsewhere in the ICD-10-CM. Select the specific code that links the meningitis to the underlying infectious condition and reflects any documented severity or associated neurologic complications.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    G02Meningitis in other infectious and parasitic diseases classified elsewhere

    DRG Codes

    7 rows

    DRG CodeDescription
    023Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator
    024Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC
    097Non-Bacterial Infection of Nervous System Except Viral Meningitis with MCC
    098Non-Bacterial Infection of Nervous System Except Viral Meningitis with CC
    099Non-Bacterial Infection of Nervous System Except Viral Meningitis without CC/MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An adult patient presents to the emergency department with acute severe headache, fever, nuchal rigidity, photophobia, and rapidly progressive confusion after a known systemic bacterial infection (e.g., pneumococcal pneumonia). Cerebrospinal fluid analysis shows neutrophilic pleocytosis and culture/PCR confirms bacterial pathogen involvement in the central nervous system, indicating meningitis occurring as part of an infectious disease process classified elsewhere; a code from this group is assigned when meningitis is linked to that other infectious disease. Typical codes: G02
    • A hospitalized immunocompromised patient (for example, with HIV or receiving chemotherapy) develops subacute onset of headache, low-grade fever, and focal neurologic signs days to weeks after diagnosis of a disseminated fungal or parasitic infection; CSF studies and pathogen testing identify the organism responsible for meningitis secondary to that systemic infection. Because the meningeal inflammation is a manifestation of an underlying infectious/parasitic disease classified elsewhere, a code from this group is used to capture that relationship. Typical codes: G02
    • A patient in the postoperative period after neurosurgical intervention for intracranial infection presents with persistent fever, altered mental status, and meningeal signs, and CSF demonstrates inflammatory changes with evidence linking the meningitis to the preexisting intracranial infectious process. The diagnostic coding reflects meningitis as a complication or direct extension of the primary infectious disease, so a code from this group is assigned. Typical codes: G02

    Related Codes

    G00-BACTERIAL-MENINGITIS-NOT-ELSEWHERE-CLASSIFIED

    ICD-10-CM Code For Bacterial Meningitis Not Elsewhere Classified: Group Overview

    G01-MENINGITIS-IN-BACTERIAL-DISEASES

    ICD-10-CM Code For Meningitis In Bacterial Diseases Classified Elsewhere: Group Overview

    G03-MENINGITIS-DUE-TO-OTHER-CAUSES

    ICD-10-CM Code For Meningitis Due To Other And Unspecified Causes: Group Overview

    G04-ENCEPHALITIS-MYELITIS-ENCEPHALOMYELITIS

    ICD-10-CM Code For Encephalitis, Myelitis And Encephalomyelitis: Group Overview

    G05-ENCEPHALITIS-MYELITIS-ENCEPHALOMYELITIS

    ICD-10-CM Code For Encephalitis Myelitis And Encephalomyelitis In Diseases Classified Elsewhere: Group Overview

    G06-INTRACRANIAL-AND-INTRASPINAL-ABSCESS

    ICD-10-CM Code For Intracranial And Intraspinal Abscess And Granuloma: Group Overview

    G07-INTRACRANIAL-AND-INTRASPINAL-ABSCESS

    ICD-10-CM Code For Intracranial And Intraspinal Abscess And Granuloma In Diseases Classified Elsewhere: Group Overview

    G08-INTRACRANIAL-AND-INTRASPINAL-PHLEBITIS

    ICD-10-CM Code For Intracranial And Intraspinal Phlebitis And Thrombophlebitis: Group Overview

    G09-SEQUELAE-OF-CENTRAL-NERVOUS-SYSTEM-INFLAMMATION

    ICD-10-CM Code For Sequelae Of Inflammatory Diseases Of Central Nervous System: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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